87 Ranger help identifying a part
 

Just got a gorgeous little red truck last month (with the classy red interior!!:D) and I have been working on fixing her up.

Looking for the name of the pictured part. It is on the rear passenger side, opposite of the front leaf spring bracket. Looks like it mounts to the inside portion of the frame, kind of in line with the muffler, and is something I would like to replace because of the rust.

I have been scratching my head at it the whole day, any help identifying this little bracket is greatly appreciated!
https://cimg3.ibsrv.net/gimg/www.for...2f9fd84caa.jpg
https://cimg2.ibsrv.net/gimg/www.for...c4f3af5e85.jpg